I've been recording a lot of footage to try to make a longer video with some nice montages and music and such. I've found that the best software for dayz is nvidia shadowplay, whats good about it is that it mostly uses the gpu so since dayz is cpu intensive it doesn't have much of an impact. ALSO, shadowplay is great in that you can record 30 fps but play at 60, which has always seriously annoyed me about fraps. Since I'm recording at 30fps at 1080, I've been able to record many hours and still have over half of my 1tb media drive left. Make sure you turn off the actual shadow recording, it makes thing jerky, all you need is manual.